124 



Fig. 420. Aristida havardii Vasey, Bull. Torr. Bot. Club, 13 : 

 27. 1886. Havard's Poverty Grass. A slender, erect, branch- 

 lug perennial, usually about 3 dm. high, with setaceous leaves 

 and divaricate-spreading, llexuous panicles 8 to 12 cm. long. 

 Empty glumes (a), slightly unequal. Awns spreading, nearly 

 equal, 12 to 14 mm. loug. Westeru Texas to New Mexico and 

 Arizona. August-October. 



